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  • Typical Panel and Pump Problems
    • Panel overload trips

      Low or incorrect voltage
      Heaters not properly adjusted
      Impeller blocked or bound
      Impeller rotating in wrong direction (3 phase)
      Motor overheating
      Undersized wire in branch circuit
      Missing leg in 3 phase power circuit

    • Pump short-cycling

      Float switches out of adjustment
      Check valve not closing when pump stops
      Undersized basin or pump
      Pump overload problem
      Motor winding problem

    • Start capacitor blows (single phase)

      Improper connection in starting circuit
      Defective or malfunctioning start relay
      Voltage too low
      Capacitors undersized
      Undersized wire in branch circuit
      Not enough head in the system
      Short-cycling pump
      Distance between pump and panel is too far

    • Pump runs in manual mode only

      Float switch #1 out of adjustment
      Loose wire causes an open circuit
      Junction box float switch connections are incorrect

    • Pump will not operate in manual or automatic mode

      No control power
      Open fuse or circuit breaker
      Overload heater tripped and not reset
      Bad motor contactor
      Malfunctioning start capacitor (single phase)
      Pump not connected properly
      Wrong voltage
      Junction box pump connections are incorrect

    • Blown fuse or open circuit breaker

      Short to ground in panel
      Shorted contactor coil
      Moisture in panel
      Bad wire in branch circuit
      Grounded power cord
      Moisture has entered the pump housing
      Grounded motor

    • Only one pump cycles in a duplex system

      Overload, fuse, or breaker open
      Inoperable lag (#3) float switch
      Pump selector switch in "off" position

    • Alarm activates on a regular basis

      Alarm float out of adjustment
      Undersized pump
      Impeller turning in wrong direction (3 phase)
      Malfunctioning pump in a 3-float duplex system
      System is air-locking

    • Inconsistent pump operation

      Impeller is getting bound
      System is air-locking
      Impeller rotating in wrong direction (3 phase)
      Malfunctioning starting circuit (single phase)
      Motor windings deteriorating